MacintoshPi is a project that allows running full-screen versions of Apple's Mac OS 7, Mac OS 8 and Mac OS 9 with sound, active online connection and modem emulation under Raspberry Pi.

Ultimate Commodore 64 Reference: ROM Disassembly, Memory Map, ...

Project for capturing vintage, classic, aka old computer schematics in KiCad.

VirtualC64 is a cycle-accurate C64 emulator for macOS

Fully documented and annotated source code for Elite on the Commodore 64

The source from my Commodore 64 assembly programming tutorial for Windows

Open Hardware Remake of the Commodore Amiga 500+ Mainboard

SIDKick pico is an inexpensive dual-SID-replacement for the C64 and C128

Emulations (running on Linux/Unix/Windows/macOS, utilizing SDL2) of some - mainly - 8 bit machines, including the Commodore LCD, Commodore 65, and the MEGA65 as well.

Homebrew 65C02 computer on a backplane

A curated list of software emulators and simulators of PCs, home computers, mainframes, consoles, robots and much more...

Collection of cartridges, adapters, and replacements for the Commodore C64

Commodore 64 VIC-II 6567/6569 Replacement Project

A harness for the Diagnostic Rev. 586220 Test for the Commodore C64

Original sources and binaries for Supermon+64 V1.2 by Jim Butterfield

tapuino

spritemate is a browser based sprite editor for the Commodore 64

A Commodore IEC Serial multi-device emulator

A Java framework for building highly customizable PETSCII-enabled BBS, accessible from Commodore 64/128

A Z-machine interpreter for the Commodore 64 and similar computers